AirHint found the following cheapest return flights from Ontario (ONT) to Shanghai (PVG) in August 2025 (see full year).

Return flights

18 Aug - 28 Aug	Frontier Airlines
17 Aug - 28 Aug	Frontier Airlines
31 Aug - 04 Sep	Qatar Airways
22 Aug - 02 Sep	Qatar Airways
23 Aug - 04 Sep	Qatar Airways
30 Aug - 07 Sep	Qatar Airways
26 Aug - 03 Sep	Qatar Airways
26 Aug - 02 Sep	Qatar Airways
25 Aug - 29 Sep	Qatar Airways
21 Aug - 25 Aug	Qatar Airways
23 Aug - 03 Sep	Qatar Airways
20 Aug - 27 Aug	Qatar Airways
18 Aug - 25 Aug	Qatar Airways
19 Aug - 26 Aug	Qatar Airways
28 Aug - 31 Aug	Qatar Airways
18 Aug - 31 Aug	Qatar Airways
29 Aug - 01 Sep	Qatar Airways
16 Aug - 23 Aug	Qatar Airways

Also check the deals for one-way flights from Ontario to Shanghai in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Ontario to Shanghai in August from 963€

Return flights